To create the precise chromatic studies of his 10-lithograph portfolio Day and Night, abstract painter and theorist Josef Albers outlined seven master images for his printer, Ken Tyler, to execute the suite. Albers had no physical hand in the work, and Tyler was tasked with the severe technical challenges of the work, which required precise color mixing, flawless registrationâ€”accomplished by using a rigid bar with pinsâ€”and the completely uninflected hand printing of a matte field of color, which was achieved by blotting each run after printing. The exactness of the image is even manifest in the paperâ€™s edges, which were cut after printing. The relationship between artist and printer was at its most synergistic with this collaboration, and Albers and Tyler would go on to complete even more complex prints after the founding of Gemini in 1965.